Not trying to reincarnate the steel/aluminum debate (trollfest), my question is more specifically, with a freeride/playbike hardtail using a ~5" fork and fat DH tires, does the flex of a steel frame have any benefit? Is a stiff, light aluminum frame better for light FR use? (by light I don't mean XC, I'm talking Snipes 7mm, Azonic evo, etc)